High molecular weight glutenin gene diversity in Aegilops tauschii demonstrates unique origin of superior wheat quality.
High molecular weight glutenin gene diversity in Aegilops tauschii demonstrates unique origin of superior wheat quality.
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DOI：
10.1038/s42003-021-02563-7
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发表时间：
2021-11-01
影响因子：
5.9
通讯作者：
Poland J
中科院分区：
文献类型：
--
作者：
Delorean E;Gao L;Lopez JFC;Open Wild Wheat Consortium;Wulff BBH;Ibba MI;Poland J
小麦产品多样性的核心是六倍体面包小麦的起源，它将陶氏Aegilops tauschii的d基因组添加到四倍体小麦中，从而在发酵面包中产生了优越的面团特性。然而，多倍体化造成了遗传瓶颈，在小麦d -亚基因组中只引入了有限的多样性。为了了解遗传变异对质量的影响，我们对已知Ae多样性的273份材料进行了测序。tauschii。相对于小麦的2个优势单倍型，我们在Glu-D1中发现了45个单倍型，Glu-D1是质量的主要决定因素。小麦等位基因为2 + 12。tauschii谱系2，小麦d亚基因组的供体。相反，优质小麦等位基因5 + 10起源于世系3，这是最近发现的一个世系。Tauschii，显示了这个重要等位基因的独特起源。这两个小麦等位基因相对于观察到的伊蚊的总分子多样性也非常相似。在Glu-D1上。Ae。因此，黄豆是独特的Glu-D1等位基因的储存库，并为小麦育种计划中开始利用新等位基因进行最终质量改进提供了基因组资源。Delorean等人与来自开放野生小麦联盟的同事一起，提出了一项对陶氏小麦基因组的分析，以研究现代小麦中Glu-D1基因的起源。他们发现了大量新的Glu-D1基因等位基因，这些等位基因可以作为产生更高质量小麦品种的储存库。这是《自然生物技术》上发表的联合论文的姊妹篇。
Central to the diversity of wheat products was the origin of hexaploid bread wheat, which added the D-genome of Aegilops tauschii to tetraploid wheat giving rise to superior dough properties in leavened breads. The polyploidization, however, imposed a genetic bottleneck, with only limited diversity introduced in the wheat D-subgenome. To understand genetic variants for quality, we sequenced 273 accessions spanning the known diversity of Ae. tauschii. We discovered 45 haplotypes in Glu-D1, a major determinant of quality, relative to the two predominant haplotypes in wheat. The wheat allele 2 + 12 was found in Ae. tauschii Lineage 2, the donor of the wheat D-subgenome. Conversely, the superior quality wheat allele 5 + 10 allele originated in Lineage 3, a recently characterized lineage of Ae. tauschii, showing a unique origin of this important allele. These two wheat alleles were also quite similar relative to the total observed molecular diversity in Ae. tauschii at Glu-D1. Ae. tauschii is thus a reservoir for unique Glu-D1 alleles and provides the genomic resource to begin utilizing new alleles for end-use quality improvement in wheat breeding programs. Delorean et al., along with colleagues from the Open Wild Wheat Consortium, present an analysis of Aegilops tauschii genomes to investigate the origins of the Glu-D1 gene in modern wheats. They discover an abundance of novel Glu-D1 gene alleles that could serve as a reservoir for generating higher quality wheat varieties. This is a companion to the Consortium paper which is available in Nature Biotechnology.
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影响因子：
46.9
作者：
Gaurav K;Arora S;Silva P;Sánchez-Martín J;Horsnell R;Gao L;Brar GS;Widrig V;John Raupp W;Singh N;Wu S;Kale SM;Chinoy C;Nicholson P;Quiroz-Chávez J;Simmonds J;Hayta S;Smedley MA;Harwood W;Pearce S;Gilbert D;Kangara N;Gardener C;Forner-Martínez M;Liu J;Yu G;Boden SA;Pascucci A;Ghosh S;Hafeez AN;O'Hara T;Waites J;Cheema J;Steuernagel B;Patpour M;Justesen AF;Liu S;Rudd JC;Avni R;Sharon A;Steiner B;Kirana RP;Buerstmayr H;Mehrabi AA;Nasyrova FY;Chayut N;Matny O;Steffenson BJ;Sandhu N;Chhuneja P;Lagudah E;Elkot AF;Tyrrell S;Bian X;Davey RP;Simonsen M;Schauser L;Tiwari VK;Randy Kutcher H;Hucl P;Li A;Liu DC;Mao L;Xu S;Brown-Guedira G;Faris J;Dvorak J;Luo MC;Krasileva K;Lux T;Artmeier S;Mayer KFX;Uauy C;Mascher M;Bentley AR;Keller B;Poland J;Wulff BBH
通讯作者：
Wulff BBH
影响因子：
5.1
作者：
Kong, XY;Gu, YQ;Anderson, OD
通讯作者：
Anderson, OD
影响因子：
1.2
作者：
Cingolani, Pablo;Platts, Adrian;Ruden, Douglas M.
通讯作者：
Ruden, Douglas M.
影响因子：
5.8
作者：
Li, Heng
通讯作者：
Li, Heng
影响因子：
3.8
作者：
Gianibelli, MC;Gupta, RB;MacRitchie, F
通讯作者：
MacRitchie, F